Aim 2. To evaluate the effectiveness of the Aim 1 QI intervention program for Veterans with TIA or minor stroke against usual care. Teams at the 6 intervention sites will be given the quality improvement program components. The primary effectiveness outcome is the proportion of Veterans who received all of the guideline-concordant processes of care for which they are eligible referred to as the "Without-Fail" care rate. The secondary effectiveness outcome is the 90-day recurrent vascular event rate.